Vial adapter



FIG. 1 is a top, right, front perspective view of a vial adapter showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a cross sectional view taken from the cut-line in FIG. 2 thereof;

FIG. 6 is a bottom, right, rear perspective view thereof; and,

FIG. 7 is a bottom, right, front perspective view thereof in an assembled arrangement.

The broken line showing in FIG. 7 is for the purpose of illustrating environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a vial adapter, as shown and described. 